compounds useful for dyeing nylon, wool, and leather, having the formula: ##STR1## wherein X1 is chlorine, bromine, methyl or trifluoromethyl, Y3 is chlorine or bromine, and K1 is a radical of the formula ##STR2## where R3 is C2 to C4 hydroxyalkyl, methoxyethyl or methoxypropyl.

Patent
   4652633
Priority
Feb 18 1984
Filed
Feb 15 1985
Issued
Mar 24 1987
Expiry
Feb 15 2005
Assg.orig
Entity
Large
3
9
EXPIRED
1. A compound of the formula ##STR212## wherein X1 is chlorine, bromine, methyl or trifluoromethyl, Y3 is chlorine or bromine, and K1 is a radical of the formula ##STR213## where R3 is C2 to C4 hydroxyalkyl, methoxyalkyl or methoxypropyl.
2. The compound of claim 1, which is: ##STR214##

The present invention relates to compounds which, in the form of the free acids, are of the general formula I ##STR3## where X is fluorine, chlorine, bromine, methyl, trifluoromethyl, C1 -C4 -alkylsulfonyl, arylsulfonyl, acetyl or benzoyl, Y is hydrogen, fluorine, chlorine, bromine, sulfamyl, C1 -C4 -mono- or -dialkylsulfamyl, C1 -C4 -alkylsulfonyl, methyl or trifluoromethyl, Y1 is hydrogen, hydroxysulfonyl, methyl or chlorine, Y2 is hydrogen or hydroxysulfonyl and K is a radical of the formula ##STR4## either Y1 or Y2 being hydroxysulfonyl, and T is cyano or methylsulfonyl, R is hydrogen or C1 -C3 -alkyl, R1 is hydrogen or alkyl or is benzyl, sulfobenzyl, phenylethyl, sulfophenylethyl, sulfophenylpropyl or C1 -C10 -alkyl which is unsubstituted or substituted by hydroxyl, cyano, C1 -C4 -alkanoyloxy or C1 -C8 -alkoxy, or is a radical of the formula ##STR5## R2 is hydrogen or C1 -C8 -alkyl, R3 is hydrogen or allyl, or is C1 -C10 -alkyl which may or may not be interrupted by oxygen and is unsubstituted or substituted by hydroxyl, cyano, C1 -C4 -alkanoyloxy, C1 -C8 -alkoxy, cyclohexyloxy, phenyl, phenoxy, sulfophenoxy, sulfophenyl or hydroxysulfonyloxy, or is cyclopentyl, or is cyclohexyl which is unsubstituted or substituted by hydroxyl, hydroxyethoxy or methyl, or is pyrrolidonylalkyl, phenyl, methoxyphenyl, sulfophenyl, C1 -C4 -alkoxysulfophenyl or a radical of the formula ##STR6## or R2 and R3, together with the nitrogen, form a saturated 5-membered or 6-membered ring, Z is phenyl which is unsubstituted or substituted by chlorine, methyl, methoxy or acetylamino, and A is a C2 -C10 -alkyl radical which may or may not be interrupted by oxygen.

Radicals R are, in addition to hydrogen, ethyl, propyl or, preferably, methyl. In addition to those already mentioned, specific examples of radicals R1, R2 and R3 (where these fall under the general definition) are:

1. Unsubstituted or substituted alkyl radicals: ##STR7##

2. unsubstituted or substituted cycloalkyl radicals ##STR8##

3. Aralkyl radicals: ##STR9## and those containing C6 H4 CH3 instead of C6 H5.

4. Sulfophenyl radicals: ##STR10##

5. ##STR11## where n is 2, 3, 4 or 6, C2 H4 OCHO, C2 H4 OCOC2 H5, C2 H4 OCOCH3, (C2 H4 O)2 COCH3, (C2 H4 O)2 CHO, (CH2)3 OCOCH3, C3 H6 OCOC2 H5 and (CH2)3 OCHO.

Examples of preferred substituents R1 and R3 are: ##STR12##

Within the scope of the general definitions, specific examples of radicals X and Y, in addition to those stated above, are methyl, ethyl, butyl, phenyl, tolylsulfonyl and the radicals of the formulae SO2 NHCH3, SO2 NHC2 H5, SO2 NHC3 H7, SO2 NHC4 H9, SO2 N(CH3)2, SO2 N(C2 H5)2, SO2 N(C3 H7)2 or SO2 N(C4 H9)2.

The dyes according to the invention can be prepared by diazotizing a diazo component of an amine of the formula ##STR13## by a conventional method, and reacting the resulting diazonium salt with a coupling component of the formula H--K.

Of particular importance are compounds of formula Ia ##STR14## where X1 is chlorine, bromine, methyl or trifluoromethyl, and K1 is a radical of the formula ##STR15## where R3 has the stated meanings.

Other useful compounds are those of the formula Ib ##STR16## where K1, X1 and Y3 have the meanings given in the case of formula Ia.

Dyes of the formula Ia which possess only one sulfo group are particularly suitable for producing level dyeings on nylon. Because of their fast rate of dyeing, they are particularly suitable for trichromatic dyeing.

The good lightfastness on wool, the advantageous phototropic behavior and the very good levelness are also noteworthy.

Some compounds according to the invention are also useful for dyeing leather.

In the Examples which follow, parts and percentages are by weight, unless stated otherwise.

PAC (A) 2,4-Dichloroacetanilide

396 parts by volume of sulfuryl chloride are added to 270 parts of acetanilide in 1000 parts by volume of nitrobenzene in the course of 3 hours at from 50° to 70°C (the chlorination is begun at a low temperature, which is then increased in order to suppress the precipitation of 2,4-dichloroacetanilide). When the addition of sulfuryl chloride is complete, stirring is continued for 1 hour from 70° to 75°C, after which dissolved hydrogen chloride is blown out with nitrogen. The mixture is then left to cool, whereupon 2,4-dichloroacetanilide is precipitated, and is isolated by being filtered off.

The product can be washed with water and dried to give 330 parts of 2,4-dichloroacetanilide, which contains about 5% of 2,4,6-trichloroacetanilide. If the nitrobenzene which is recovered as a filtrate, and in which some 2,4-dichloroacetanilide is still dissolved, is employed in a second experiment, the yield increases to 396 parts.

204 parts of the crude 2,4-dichloroacetanilide are added to 300 parts of 100% strength sulfuric acid, while stirring. Thereafter, the mixture is heated further to 130°C, and 235 parts of chlorosulfonic acid are added dropwise at this temperature in such a manner that the hydrogen chloride gas liberated can readily be removed. Stirring is then continued at from 135° to 140°C until the sulfonation is complete, this taking about 1 hour. The mixture is then left to cool to 50°-80°C, and is poured into 1300 parts by volume of water. After steam distillation for a short time, 10 parts of pure 2,4,6-trichloroaniline are obtained, as a by-product, in the distillate. The reaction mixture is then cooled to room temperature, and precipitated 2,4-dichloroaniline-6-sulfonic acid is filtered off and washed with dilute hydrochloric acid. 204 parts of 2,4-dichloroaniline-6-sulfonic acid (calculated as 100% pure) are obtained as a colorless aqueous paste, which can be used in moist form for diazotizations. H-NMR in D2 O: 7.3 ppm, 7.6 ppm, J: 3 Hz (as the ammonium salt).

204 parts of crude 2,4-dichloroacetanilide are carefully added to 600 parts of 23% strength oleum, and the mixture is heated to 140°C and stirred at this temperature for 1 hour. It is then left to cool to 50°-80°C and is poured into 1000 parts of water. 10 parts of 2,4,6-trichloroaniline are isolated by steam distillation, and the remaining mixture is filtered after it has cooled. The gray product isolated is stirred with about 5000 parts of water and neutralized with sodium hydroxide solution. A little active carbon is added, after which the mixture is heated to about 95°C and filtered, and the resulting 2,4-dichloroaniline-5-sulfonic acid is precipitated from the filtrate by acidification and is isolated in a conventional manner after the mixture has cooled. The product still contains a small amount of 2,4-dichloroaniline-6-sulfonic acid, which can be removed by recrystallization from water. 2,4-Dichloroaniline-5-sulfonic acid is obtained as a colorless powder. Yield: about 140 parts. H-NMR in D2 O: 7.45 ppm (as the ammonium salt).

19.5 parts of 2,4-dichloroaniline-6-sulfonic acid are dissolved in 200 parts by volume of hot water at pH 7.5-10, using sodium hydroxide solution. A wetting agent which is effective under acidic conditions and 27 parts by volume of a 23% strength aqueous sodium nitrite solution are added, and the mixture is cooled to 0°-5°C 60 parts of ice are added, after which 55 parts of a 15-18% strength hydrochloric acid solution are introduced all at once, and the mixture is stirred for a further 3 hours at from 0° to 5°C Thereafter, a solution or suspension of 21.2 parts of 2,6-bis-(3-hydroxypropylamino)-3-cyano-4-methylpyridine in 120 parts by volume of water and 7 parts by volume of concentrated hydrochloric acid is run in, stirring is continued for from 15 to 30 minutes, and the pH of the mixture is then slowly increased to 2-2.5 by adding sodium hydroxide solution or sodium formate. The acid formed as a result of the coupling reaction is then bound continuously by adding appropriate amounts of sodium hydroxide solution or sodium formate. When the reaction has been maintained at pH 2-2.5 for about 30-60 minutes, the pH of the mixture is increased to 3-3.5 by adding dilute sodium hydroxide solution or sodium acetate, and stirring is continued at this pH until the coupling is substantially complete. The pH of the mixture is then increased to 4.3-4.7 by adding dilute sodium hydroxide solution, after which the coupling reaction quickly ends. The resulting dye of the formula ##STR17## is precipitated virtually quantitatively by adding 80 parts of sodium chloride, and is then isolated by filtration. It is dried to give 42 parts of a reddish brown powder which still contains about 1 part of water-soluble salts in addition to 41 parts of the dye.

The dye dissolves in water to give a yellow solution and dyes nylon and wool in intense, lightfast, golden yellow hues. The absorption maximum of a solution of about 0.020 part of dye in 900 parts by volume of dimethylformamide and 150 parts by volume of glacial acetic acid is 427.5 nm.

The particular advantage of this dye is the high migrating power and the ability to dye nylon simultaneously with red and blue dyes. For example, a dye mixture of about 4 parts of this dye with about 4 parts of Acid Red 57 and 3 parts of Acid Blue 72 gives a (dark) brown. All three dyes dye nylon fabric at the same rate in the temperature range from 60° to 100°C, so that the dyeing always remains brown. The dye is also suitable for combination dyeing to achieve beige hues which are very light-fast and in particular are non-phototropic to light from incandescent lamps (no reversible change to a greener hue).

19.5 parts of 2,4-dichloroaniline-6-sulfonic acid are diazotized by a procedure similar to that described in Example 1. Excess nitrous acid is then destroyed in a conventional manner, and the diazonium salt mixture is buffered to pH 2-4 with sodium acetate. A solution of 16.7 parts of 1-(2-methoxyethyl)-6-hydroxy-3-cyano-4-methylpyrid-2-one in 200 parts by volume of water, 10 parts of 50% strength sodium hydroxide solution and 0.3 part of a dispersant which is effective under acidic conditions is then run in. The coupling mixture is stirred for a further 60-80 minutes, after which it is acidified to pH 0.3-0.5 with concentrated hydrochloric acid, and the precipitated dye of the formula ##STR18## is filtered off under suction, washed salt-free with a little water and dried to give 36 parts of a yellow powder. 20 parts of this powder are suspended in a mixture of 20 parts of butyldiglycol and 60 parts of 2- or 3-methoxypropanol, and the suspension is neutralized with lithium hydroxide. Clear filtration gives a honey yellow solution. This dye solution is very useful for dyeing leather lemon yellow by a conventional spray-dyeing method. The absorption maximum of the dye in a 9:1 dimethylformamide/glacial acetic acid mixture is determined as 412 nm.

22.1 parts of 2-trifluoromethyl-4-chloroaniline-6-sulfonic acid are diazotized by a procedure similar to that described in Example 1. 31 parts of the coupling component of the formula ##STR19## in the form of a roughly 50% strength water-moist paste, are then introduced into the diazonium salt mixture, after which the pH of the coupling mixture is brought to 4.5-5 with 25% strength sodium hydroxide solution. When coupling is complete, the mixture is neutralized with further sodium hydroxide solution and is then spray dried.

73 parts of a red powder are obtained. The resulting dye is of the formula ##STR20## and has an absorption maximum of 430 nm in a 9:1 dimethylformamide/glacial acetic acid mixture. It dyes wool and nylon in fast intense golden yellow hues.

19.5 parts of 2,4-dichloroaniline-6-sulfonic acid are diazotized by a procedure similar to that described in Example 1. When excess nitrous acid has been destroyed, 24.2 parts of 2-phenyl-4,6-bis-(3-hydroxypropylamino)-pyrimidine are added, and stirring is continued until the coupling component has dissolved. Thereafter, a dispersant which is highly effective at pH 7-10 is added and the pH of the coupling mixture is brought to 8.5-9.2 with sodium hydroxide solution and then with a little sodium carbonate solution (as a buffer). Stirring is continued overnight, and the resulting dye of the formula ##STR21## (λmax: 431.5 nm (CH3)2 NCHO/CH3 CO2 H=9:1) is then precipitated by adding about 30 parts of sodium chloride and acidifying the mixture to pH 4-4.5, and is isolated in a conventional manner to give about 50 parts of a reddish brown powder which dissolves in water to give a yellow solution and dyes nylon fabric and wool in very fast golden yellow hues. The dye has great migrating power.

TABLE 1
__________________________________________________________________________
##STR22##
λmax
No.
R R1 R2 R3
Hue (nm)
__________________________________________________________________________
1 Cl H C3 H6 OCH3
C3 H7
yellow 413
2 Cl H C3 H6 OH
C3 H7
yellow 413
3 Cl H C3 H6 OC4 H8 OH
CH3
yellow 411
4 Cl H C3 H6 OC4 H8 OH
H yellow 412
5 Cl H C2 H4 OC2 H4 OH
CH3
yellow 409
6 Cl H C2 H4 OC2 H4 OCH3
CH3
yellow 409
7 Cl H C2 H4 OC4 H9 (n)
CH3
yellow 409
8 Cl H C3 H6 OCH3
CH3
yellow 410
9 Cl H C3 H6 OC2 H5
CH3
yellow 410
10 Cl C3 H6 OC4 H8 OH
H CH3
yellow 412
11 Cl C3 H6 OC2 H4 OC2 H5
H CH3
yellow 411
12 Cl C2 H5
C2 H4 OH
CH3
golden yellow
422
13 Cl CH3 C3 H6 OC4 H8 OH
CH3
golden yellow
420
14 Cl C2 H5
C3 H6 OC4 H8 OH
CH3
golden yellow
422
15 Cl C2 H5
C2 H4 OC2 H4 OH
CH3
golden yellow
421
16 Cl CH2 CHCH2
C2 H4 OC2 H4 OH
CH3
golden yellow
422
17 Cl CH(CH3)2
C2 H4 OC2 H4 OH
CH3
golden yellow
420
18 Cl CH2 CH2 OCH3
CH2 CH2 OCH3
CH 3
golden yellow
419
19 Cl (CH2)3 OCH3
CH2 CH2 OCH3
CH3
golden yellow
421
20 Cl (CH2)3 OCH3
(CH2)3 OCH3
CH3
golden yellow
427
21 Cl
##STR23##
C2 H4 OCH3
CH3
golden yellow
422
22 Cl CH2 CH2 OCH3
(CH2)3 OCH3
CH3
golden yellow
423
23 Cl CH2 CH2 OCH3
CH2 CH2 OH
CH3
golden yellow
423
24 Cl CH2 CH2 OCH3
##STR24## CH3
golden yellow
423
25 Cl CH2 CH2 OCH3
CH2 CH2 OC2 H5
CH3
golden yellow
421
26 Cl CH2 CH2 OCH3
(CH2)3 OCH(CH3)2
CH3
golden yellow
423
27 Cl CH2 CH2 OCH3
(CH2)3 O(CH2)4 OH
CH3
golden yellow
423
28 Cl CH2 CH2 OCH 3
(CH2)3 OH
CH3
golden yellow
424
29 Cl
##STR25##
CH2 CH2 OCH3
CH3
golden yellow
423
30 Cl
##STR26##
(CH2)3 OCH3
CH3
orange 423
31 Cl
##STR27##
(CH2)2 OH
CH3
golden yellow
422
32 Cl
##STR28##
(CH2)3 OH
CH3
orange 424
33 Cl
##STR29##
(CH2)3 OC2 H5
CH3
orange 424
34 Cl
##STR30##
##STR31## CH3
orange 424
35 Cl (CH2)3 OH
(CH2)2 OH
CH3
golden yellow
425
36 Cl (CH2)3 OH
##STR32## CH3
golden yellow
426
37 Cl (CH2)3 OH
(CH2)2 OCH3
CH3
golden yellow
426
38 Cl (CH2)3 OH
(CH2)3 OCH3
CH3
golden yellow
427
39 Cl (CH2)3 OH
(CH2)3 OC2 H5
CH3
golden yellow
426
40 Cl (CH2)2 OH
(CH2)2 OH
CH3
golden yellow
420
41 Cl (CH2)2 OH
(CH2)3 OH
CH3
golden yellow
423
42 Cl (CH2)2 OH
##STR33## CH3
golden yellow
423
43 Cl (CH2)2 OH
(CH2)2 OCH3
CH3
golden yellow
421
44 Cl (CH2)2 OH
(CH2)3 OCH3
CH3
golden yellow
423
45 Cl (CH2)2 OH
(CH2)3 OC2 H5
CH3
golden yellow
423
46 Cl (CH2)2 OH
C4 H9 (n)
CH3
golden yellow
427
47 Cl (CH2)2 OH
(CH2)3 OCH2 C6 H5
CH3
golden yellow
425
48 Cl (CH2)2 OH
(CH2)2 C6 H5
CH3
golden yellow
422
49 Cl (CH2)2 OH
##STR34## CH3
golden yellow
422
50 Cl (CH2)2 OH
##STR35## CH3
golden yellow
423
51 Cl C2 H5
##STR36## CH3
golden yellow
422
52 Cl C2 H5
C2 H5
CH3
golden yellow
420
53 Cl (CH2)2 CN
(CH2)3 OH
CH3
golden yellow
422
54 Cl (CH2)5 CN
(CH2)3 OH
CH3
golden yellow
423
55 Cl (CH2)2 C6 H5
(CH2)2 OH
CH3
golden yellow
421
56 Cl
##STR37##
C4 H9 (n)
CH3
golden yellow
423
57 Cl CH2 CHCH2
(CH2)2 OH
CH3
golden yellow
422
58 Cl CH2 CHCH2
(CH2)3 OH
CH3
golden yellow
423
59 Br (CH2)3 OH
(CH2)3 OH
CH3
golden yellow
429
60 CF3
(CH2)3 OH
(CH2)3 OH
CH3
golden yellow
430
61 CF3
(CH2)2 OCH3
(CH2)2 OH
CH3
golden yellow
428
62 Cl
##STR38##
(CH2)2 OH
CH3
golden yellow
425
63 Cl
##STR39##
(CH2)3 OH
CH3
golden yellow
426
64 Cl
##STR40##
(CH2)3 OH
CH3
golden yellow
426
65 Cl
##STR41##
(CH2)2 OH
CH3
golden yellow
424
66 Cl (CH2 )2 OCOCH3
(CH2)2 OCOCH3
CH3
golden yellow
420
67 Cl (CH2)3 OCHO
(CH2)3 OCHO
CH3
golden yellow
421
68 Cl (CH2)2 OCH3
(CH2)3 OCHO
CH3
golden yellow
421
69 Cl (CH2)3 OCHO
(CH2)2 OCH3
CH3
golden yellow
421
70 Cl (CH2)4 OH
(CH2)4 OH
CH3
golden yellow
430
71 Cl (CH2)4 OH
(CH2)3 OH
CH3
golden yellow
429
72 Cl (CH2)4 OH
(CH2)2 OH
CH3
golden yellow
429
73 Cl (CH2)4 OH
(CH2)2 OCH3
CH3
golden yellow
428
__________________________________________________________________________
TABLE 2
__________________________________________________________________________
##STR42##
No.
R1 R2 R3
Hue
__________________________________________________________________________
##STR43## C2 H5
H golden yellow
2
##STR44## C2 H5
C2 H5
orange
3
##STR45## C4 H9 (n)
H golden yellow
4
##STR46## C3 H6 OCH3
H golden yellow
5
##STR47## C2 H4 OCH3
H golden yellow
6
##STR48## C3 H6 OC2 H5
H golden yellow
7
##STR49## C3 H6 OH
H golden yellow
8
##STR50## C4 H8 OH
H golden yellow
9
##STR51## C4 H9 (n)
C4 H9 (n)
orange
10
##STR52##
##STR53##
H golden yellow
11
##STR54## C2 H4 OH
H golden yellow
12
##STR55## C3 H6 OH
H golden yellow
13
##STR56## C4 H9 (n)
H golden yellow
14
##STR57## C3 H6 OCH3
H golden yellow
15
##STR58## C2 H4 OCH3
H golden yellow
16
##STR59##
##STR60##
H golden yellow
17 C4 H8 OH
##STR61##
H golden yellow
18 C3 H6 OH
##STR62## orange
19 C2 H4 OCH3
##STR63## orange
20 C3 H6 OCH3
##STR64## orange
21 C3 H6 OH
##STR65## orange
__________________________________________________________________________
TABLE 3
__________________________________________________________________________
##STR66##
λmax
No.
R R1 R2 R3 Hue (nm)
__________________________________________________________________________
1 Cl C3 H6 OH
C6 H5
C2 H4 OH
golden yellow
429
2 Cl C3 H6 OH
C6 H5
C2 H4 OCH3
golden yellow
428
3 Cl C3 H6 OH
C6 H5
C3 H6 OCH3
golden yellow
430
4 Cl C3 H6 OH
C6 H5
C2 H4 OC2 H5
golden yellow
428
5 Cl C3 H6 OH
C6 H5
C2 H4 OC2 H4 OH
yellow 427
6 Cl C3 H6 OH
C6 H5
C2 H4 OC2 H4 OCH3
yellow 427
7 Cl C3 H6 OH
C6 H5
C3 H6 OC2 H4 OH
golden yellow
430
8 Cl C3 H6 OH
C6 H5
C3 H6 OC4 H8 OH
golden yellow
430
9 Cl C2 H4 OH
C6 H5
C2 H4 OCH3
yellow 426
10 Cl C2 H4 OH
C6 H5
C3 H6 OCH3
yellow 427
11 Cl C2 H4 OH
C6 H5
C3 H6 OC3 H7
yellow 428
12 Cl C2 H4 OCH3
C6 H5
C2 H4 OCH3
yellow 426
13 Cl C2 H4 OCH3
C6 H5
C3 H6 OCH3
yellow 428
14 Cl C3 H6 OCH3
C6 H5
C3 H6 OCH3
golden yellow
429
15 Cl
##STR67## C6 H5
C3 H6 OCH3
golden yellow
430
16 Cl
##STR68## C6 H5
##STR69##
golden yellow
431
17 Br
##STR70## C6 H5
##STR71##
golden yellow
431
18 Br C3 H6 OH
C3 H6
C3 H6 OH
golden yellow
432
19 Cl C3 H6 OH
##STR72##
C3 H6 OH
golden yellow
432
20 Cl C3 H6 OH
##STR73##
C3 H6 OH
golden yellow
432
21 Cl C4 H8 OH
C6 H5
C4 H8 OH
golden yellow
433
22 Cl C2 H4 OH
##STR74##
C2 H4 OH
golden yellow
431
23 Cl
##STR75##
##STR76##
C2 H4 OH
yellow 428
24 CF3
C3 H6 OH
C6 H6
C3 H6 OH
golden yellow
434
25 CF3
C3 H6 OH
C6 H5
C2 H4 OH
golden yellow
433
26 CF3
##STR77## C6 H5
C2 H4 OH
golden yellow
433
27 CF3
##STR78## C6 H5
##STR79##
golden yellow
435
28 CF3
C2 H4 OCH3
C6 H5
##STR80##
golden yellow
432
29 CF3
C2 H4 OCH3
C6 H5
C2 H4 OH
golden yellow
432
30 CF3
C2 H4 OCH3
C6 H5
C3 H6 OH
golden yellow
432
31 CF3
C 3 H6 OCH3
C6 H5
C3 H6 OH
golden yellow
435
32 CF3
##STR81##
##STR82##
C2 H4 OH
golden yellow
433
33 Cl
##STR83## C6 H5
##STR84##
golden yellow
434
34 CH3
C2 H4 OH
C6 H5
C2 H4 OH
golden yellow
432
__________________________________________________________________________
TABLE 4
______________________________________
##STR85##
λmax
No. R R1 R2 R3
Hue (nm)
______________________________________
1Cl Cl C2 H4 OH
H green-
412
ish
yellow
2Cl Cl C2 H4 OH
CH3
green-
412
ish
yellow
3Cl Cl C2 H4 OH
C2 H5
green-
411
ish
yellow
4Cl Cl C2 H4 OH
C3 H7
green-
410
(n) ish
yellow
5Cl Cl C3 H6 OH
CH3
green-
412
ish
yellow
6Cl Cl C3 H6 OH
CH3
green-
412
ish
yellow
7Cl Cl C3 H6 OH
C3 H7
green-
411
(n) ish
yellow
8Cl Cl C3 H6 OCOCH3
CH3
green-
413
ish
yellow
9Cl Cl C3 H6 OCH3
C3 H7
green-
412
(n) ish
yellow
10Cl Cl C3 H6 OCH3
CH3
green-
412
ish
yellow
11Br Cl C3 H6 OCH3
CH3
green-
413
ish
yellow
12Cl Cl C3 H6 OCH3
H green-
412
ish
yellow
13Cl Cl C6 H13 (n)
CH3
green-
413
ish
yellow
14Cl Cl C3 H6 OC2 H5
CH3
green-
413
ish
yellow
15Cl Cl C3 H6 OC3 H7
CH3
green-
412
ish
yellow
16Cl Cl C3 H6 OC4 H8 OH
CH3
green-
412
ish
yellow
17Cl CF3 C3 H6 OC4 H8 OH
CH3
green-
407
ish
yellow
18Cl CF3 C6 H12 OH
CH3
green-
408
ish
yellow
19Cl Cl C6 H12 OH
CH3
green-
413
ish
yellow
20Cl CF3 C3 H6 OCH3
CH3
green-
407
ish
yellow
21Cl CF3 CH2 CH2C6 H5
CH3
green-
407
ish
yellow
22Cl CF3 CH2 CHCH2
CH3
green-
407
ish
yellow
23Cl CF3 C6 H13 (n)
CH3
green-
408
ish
yellow
24Cl CF3
##STR86## CH3
green- ish yellow
407
25Cl Cl
##STR87## CH3
green- ish yellow
412
26Cl Cl
##STR88## CH3
green- ish yellow
413
27Cl Cl C4 H8 OH
CH3
green-
413
ish
yellow
28Cl Cl C6 H12 OH
CH3
green-
413
ish
yellow
29H SO2 C6 H5
C4 H8 OH
CH3
green-
ish
yellow
30H SO2 C6 H5
C3 H6 OH
CH3
green-
ish
yellow
31Cl CH3 C3 H6 OH
CH3
green-
411
ish
yellow
32Cl CH3 C2 H4 OH
CH3
green-
412
ish
yellow
33Cl CH3 C3 H6 OCH3
CH3
green-
411
ish
yellow
34Cl Br C3 H6 OCH3
CH3
green-
413
ish
yellow
35Cl Br C3 H6 OH
CH3
green-
413
ish
yellow
36Cl Br C4 H8 OH
CH3
green-
413
ish
yellow
37CH3
Br C4 H8 OH
CH3
green-
414
ish
yellow
38CH3
Br C3 H6 OH
CH3
green-
414
ish
yellow
39CH3
Br C3 H6 OCH 3
CH3
green-
414
ish
yellow
40CH3
Br C2 H4 OCH3
CH3
green-
414
ish
yellow
______________________________________
TABLE 5
______________________________________
##STR89##
λmax
No. R A Hue (nm)
______________________________________
1 Cl C2 H4 greenish
413
yellow
2 Cl C3 H6 greenish
413
yellow
3 Cl
##STR90## greenish yellow
413
4 Cl (CH2)6 greenish
412
yellow
5 Cl (CH2)3 O(CH2)3
greenish
413
yellow
6 Br (CH2)3 O(CH2)2 O(CH2)3
greenish
413
yellow
7 Br C3 H6 greenish
413
yellow
8 CF3
C2 H4 greenish
417
yellow
9 CF3
C3 H6 greenish
408
yellow
10 CF3
##STR91## greenish yellow
408
11 CF3
(CH2)6 greenish
408
yellow
12 CF3
(CH2)3 O(CH2)3
greenish
408
yellow
13 Cl (CH2)3 O(CH2)2 O(CH2)3
greenish
412
yellow
14 Cl (CH2)3 O(CH2)4 O(CH2)3
greenish
413
yellow
15 Cl CH2(CH3)2CH2
greenish
413
yellow
______________________________________
TABLE 6
______________________________________
##STR92##
No. A R1
R2 Hue
______________________________________
1 CH2 CH2
Cl C2 H4 OH
golden
yellow
2 (CH2)3 Cl C2 H4 OH
golden
yellow
3 (CH2)3 Cl C3 H6 OH
golden
yellow
4 (CH2)3 Cl C2 H4 OC2 H4 OH
golden
yellow
5 (CH2)3 Cl C2 H4 OCH3
golden
yellow
6 (CH2)3 Cl C3 H6 OCH3
golden
yellow
7 (CH2)4 Cl C2 H4 OH
golden
yellow
8 (CH2)4 Cl C3 H6 OH
golden
yellow
9 (CH2)3 O(CH2)2 O(CH2)3
Cl C2 H4 OH
golden
yellow
10 (CH2)3 O(CH2)2 O(CH2)3
Cl C3 H6 OH
golden
yellow
11 (CH2)3 O(CH2)4 O(CH2)3
Cl C3 H6 OH
golden
yellow
12 (CH2)3 O(CH2)4 O(CH2)3
Cl C2 H4 OCH3
golden
yellow
13 (CH2) 3 O(CH2)4 O(CH2)3
Cl C3 H6 OCH3
golden
yellow
14 (CH2)3 O(CH2)4 O(CH2)3
CF3
C3 H6 OCH3
golden
yellow
15 (CH2)3 CF3
C3 H6 OCH3
golden
yellow
16 (CH2)6 Cl C2 H4 OCH3
golden
yellow
17
##STR93## Cl C2 H4 OH
golden yellow
18
##STR94## Cl C2 H4 OC2 H4 OH
golden yellow
19 (CH2)3 Cl C2 H4 OC2 H4 OH
golden
yellow
20 (CH2)3 Cl C4 H8 OH
golden
yellow
21 (CH2)3 CH3
C2 H 4 OH
golden
yellow
______________________________________
TABLE 7
__________________________________________________________________________
##STR95##
λmax
No.
R R1
R2
K Hue (nm)
__________________________________________________________________________
1 H CH3 Cl
H H Cl
SO2 C6 H5 SO2 C6 H5 Cl
##STR96## orange orange orange
4 H CH3
Cl Cl
SO2 C6 H5 SO2 C6 H5
##STR97## orange orange
6 Cl Cl
Cl H
Cl SO2 C6 H5
##STR98## orange orange
8 H H H
H H H
COCH3 CF3 COC6 H5
##STR99## orange orange orange
11 12 13
H H F
H H H
COC6 H5 COCH3 Br
##STR100## orange orange orange
14 15
Br Cl
H H
F F
##STR101## orange orange
16 17 18 19
H Cl SO2 C4 H9 Cl
Cl H H Cl
Cl SO2 C4 H9 Cl Cl
##STR102## orange orange orange orange
425
20 21
Cl Cl
Cl H
Cl CH3
##STR103## orange orange
425
__________________________________________________________________________
TABLE 8
______________________________________
##STR104##
λmax
No. R1 R2 (nm)
______________________________________
##STR105## C6 H5
432
2
##STR106##
##STR107## 433
3
##STR108##
##STR109## 432
4
##STR110##
##STR111## 435
5
##STR112##
##STR113## 435
6
##STR114##
##STR115## 434
7
##STR116## C6 H5
430
8
##STR117##
##STR118## 432
9
##STR119##
##STR120## 430
10
##STR121##
##STR122## 430
11
##STR123## C6 H5
430
12
##STR124##
##STR125## 435
13
##STR126##
##STR127## 431
______________________________________

19.5 parts of 2,4-dichloroaniline-5-sulfonic acid are stirred overnight with 50 parts of 15% strength hydrochloric acid in the presence of a wetting agent which is effective under acidic conditions. Thereafter, the mixture is cooled with ice to 0°C, 27 parts by volume of a 23% strength sodium nitrite solution are added in the course of from 5 to 20 minutes, and the suspension is stirred for a further 3 hours at from 0° to 5°C A solution or suspension of 21.2 parts of 2,6-bis-(3-hydroxypropylamino)-3-cyano-4-methylpyridine in 120 parts by volume of water and 7 parts by volume of concentrated hydrochloric acid is then run in. Stirring is continued for from 15 to 30 minutes, and the pH of the mixture is then slowly increased to 1-1.5 by adding sodium hydroxide solution or sodium formate. The acid formed as a result of the coupling reaction is then bound continuously by adding appropriate amounts of sodium hydroxide solution or sodium formate. When the mixture has been kept at pH 1-1.5 for about 30-60 minutes, the pH is increased to 3-3.5 by adding dilute sodium hydroxide solution or sodium acetate. The coupling reaction quickly comes to an end. The resulting dye of the formula ##STR128## is precipitated virtually quantitatively by adding 40 parts of sodium chloride and is then isolated by filtration. After drying, 44 parts of a brown powder are obtained.

The dye dissolves in water to give a yellow solution and dyes nylon and wool in intense, lightfast, golden yellow hues.

The absorption maximum of a solution of about 0.020 part of the dye in 900 parts by volume of dimethylformamide and 150 parts by volume of glacial acetic acid is 457 nm (water: 435 nm).

TABLE 9
______________________________________
##STR129##
No. R1 R2 λmax (nm)
______________________________________
##STR130## C6 H5
459
2
##STR131##
##STR132## 459
3
##STR133##
##STR134## 459
4
##STR135##
##STR136## 460
5
##STR137##
##STR138## 460
6
##STR139##
##STR140## 460
7
##STR141## C6 H5
456
8
##STR142##
##STR143## 459
9
##STR144##
##STR145## 457
10
##STR146##
##STR147## 457
11
##STR148## C6 H5
458
12
##STR149##
##STR150## 460
13
##STR151##
##STR152## 458
______________________________________
TABLE 10
__________________________________________________________________________
##STR153##
No.
R R1 R2 R3
Hue λmax (nm)
__________________________________________________________________________
1 Cl H C3 H6 OCH3
C3 H7
yellow 446
2 Cl H C3 H6 OH
C3 H7
yellow 446
3 Cl H C3 H6 OC4 H8 OH
CH3
yellow 441
4 Cl H C3 H6 OC4 H8 OH
H yellow 443
5 Cl H C2 H4 OC2 H4 OH
CH3
yellow 443
6 Cl H C2 H4 OC2 H4 OCH3
CH3
yellow 444
7 Cl H C2 H4 OC4 H9 (n)
CH3
yellow 446
8
Cl H C3 H6 OCH3
CH3
yellow 446
9 Cl H C3 H6 OC2 H5
CH3
yellow 446
10 Cl C3 H6 OC4 H8 OH
H CH3
yellow 448
11 Cl C3 H6 OC2 H4 OC2 H5
H CH3
yellow 449
12 Cl C2 H5
C2 H4 OH
CH3
golden yellow
455
13 Cl CH3 C3 H6 OC4 H8 OH
CH3
golden yellow
454
14 Cl C2 H5
C3 H6 OC4 H8 OH
CH3
golden yellow
455
15 Cl C2 H5
C2 H4 OC2 H4 OH
CH3
golden yellow
453
16 Cl CH2 CHCH2
C2 H4 OC2 H4 OH
CH3
golden yellow
454
17 Cl CH(CH3)2
C2 H4 OC2 H4 OH
CH3
golden yellow
453
18 Cl CH2 CH2 OCH3
CH2 CH2 OCH3
CH3
golden yellow
454
19 Cl (CH2)3 OCH3
CH2 CH2 OCH3
CH3
golden yellow
455
20 Cl (CH2)3 OCH3
(CH2)3 OCH3
CH3
golden yellow
456
21 Cl
##STR154##
C2 H4 OCH3
CH3
golden yellow
455
22 Cl CH2 CH2 OCH3
(CH2)3 OCH3
CH3
golden yellow
455
23 Cl CH2 CH2 OCH3
CH2 CH2 OH
CH3
golden yellow
453
24 Cl CH2 CH2 OCH3
##STR155##
CH3
golden yellow
453
25 Cl CH2 CH2 OCH3
CH2 CH2 OC2 H5
CH3
golden yellow
452
26 Cl CH2 CH2 OCH3
(CH2)3 OCH(CH3)2
CH3
golden yellow
454
27 Cl CH2 CH2 OCH3
(CH2)3 O(CH2)4 OH
CH3
golden yellow
454
28 Cl CH2 CH2 OCH3
(CH2)3 OH
CH3
golden yellow
454
29 Cl
##STR156##
CH2 CH2 OCH3
CH3
golden yellow
452
30 Cl
##STR157##
(CH2)3 OCH3
CH3
orange 453
31 Cl
##STR158##
(CH2)2 OH
CH3
golden yellow
452
32 Cl
##STR159##
(CH2)3 OH
CH3
orange 453
33 Cl
##STR160##
(CH2)3 OC2 H5
CH3
orange 453
34 Cl
##STR161##
##STR162##
CH3
orange 453
35 Cl (CH2)3 OH
(CH2)2 OH
CH3
golden yellow
452
36 Cl (CH2)3 OH
##STR163##
CH3
golden yellow
455
37 Cl (CH2)3 OH
(CH2)2 OCH3
CH3
golden yellow
453
38 Cl (CH 2)3 OH
(CH2)3 OCH3
CH3
golden yellow
456
39 Cl (CH2)3 OH
(CH2)3 OC2 H5
CH3
golden yellow
456
40 Cl (CH2)2 OH
(CH2)2 OH
CH3
golden yellow
452
41 Cl (CH2)2 OH
(CH2)3 OH
CH3
golden yellow
453
42 Cl (CH2)2 OH
##STR164##
CH3
golden yellow
453
43 Cl (CH2)2 OH
(CH2)2 OCH3
CH3
golden yellow
451
44 Cl (CH2)2 OH
(CH2)2 OCH3
CH3
golden yellow
453
45 Cl (CH2)2 OH
(CH2)3 OC2 H5
CH3
golden yellow
453
46 Cl (CH2)2 OH
C4 H9 (n)
CH3
golden yellow
456
47 Cl (CH2)2 OH
(CH2)3 OCH2 C6 H5
CH3
golden yellow
455
48 Cl (CH2)2 OH
(CH2)2 C6 H 5
Ch3
golden yellow
450
49 Cl (CH2)2 OH
##STR165##
CH3
golden yellow
455
50 Cl (CH2)2 OH
##STR166##
CH3
golden yellow
454
51 Cl C2 H5
##STR167##
CH3
golden yellow
451
52 Cl C2 H5
C2 H5
CH3
golden yellow
449
53 Cl (CH2)2 CN
(CH2)3 OH
CH3
golden yellow
450
54 Cl (CH2)5 CN
(CH2)3 OH
CH3
golden yellow
457
55 Cl (CH2)2 C6 H5
(CH2)2 OH
CH3
golden yellow
448
56 Cl
##STR168##
C4 H9 (n)
CH3
golden yellow
450
57 Cl CH2 CHCH 2
(CH2)2 OH
CH3
golden yellow
452
58 Cl CH2 CHCH2
(CH2)3 OH
CH3
golden yellow
454
59 Br (CH2)3 OH
(CH2)3 OH
CH3
golden yellow
457
60 CF3
(CH2)3 OH
(CH2)3 OH
CH3
golden yellow
458
61 CF3
(CH2)2 OCH3
(CH2)2 OH
CH3
golden yellow
456
62 Cl
##STR169##
(CH2)2 OH
CH3
golden yellow
453
63 Cl
##STR170##
(CH2)3 OH
CH3
golden yellow
454
64 Cl
##STR171##
(CH2)3 OH
CH3
golden yellow
455
65 Cl
##STR172##
(CH2)2 OH
CH3
golden yellow
454
66 Cl (CH2)2 OCOCH3
(CH2)2 OCOCH3
CH3
golden yellow
450
67 Cl (CH2)3 OCHO
(CH2)3 OCHO
CH3
golden yellow
454
68 Cl (CH2)2 OCH3
(CH2)3 OCHO
CH3
golden yellow
453
69 Cl (CH2)3 OCHO
(CH2)2 OCH3
CH3
golden yellow
453
70 Cl (CH2)4 OH
(CH2)4 OH
CH3
golden yellow
457
71 Cl (CH2)4 OH
(CH2)3 OH
CH3
golden yellow
457
72 Cl (CH2)4 OH
(CH2)2 OH
CH3
golden yellow
456
73 Cl (CH2)4 OH
(CH2)2 OCH3
CH3
golden yellow
456
74 Cl C3 H6 OC2 H4 OCH3
##STR173##
CH3
orange 459
75 Cl C3 H6 OC2 H4 OCH3
C6 H5
CH3
orange 458
76 Cl C3 H5 (OC2 H4)2 OCH3
C6 H5
CH3
orange 458
77 Cl C3 H6 (OC2 H4)2 OCH3
##STR174##
CH3
orange 460
78 Cl C2 H4 OC2 H4 OH
##STR175##
CH3
orange 458
79 Cl C2 H4 OC2 H4 OH
C6 H5
CH3
orange 457
80 Cl C6 H5
C2 H4 OC2 H4 OH
CH3
orange 456
81 Cl
##STR176##
C2 H4 OC2 H4 OH
CH3
orange 458
82 Cl
##STR177##
C2 H4 OC2 H4 OH
CH3
orange 458
83 Cl
##STR178##
C2 H4 OC2 H4 OH
CH3
orange 458
__________________________________________________________________________
TABLE 11
__________________________________________________________________________
##STR179##
λmax
No.
R R1 R2 R3 Hue (nm)
__________________________________________________________________________
1 Cl C3 H6 OH
C6 H5
C2 H4 OH
golden yellow
435
2 Cl C3 H6 OH
C6 H5
C2 H4 OCH3
golden yellow
433
3 Cl C3 H6 OH
C6 H5
C3 H6 OCH3
golden yellow
436
4 Cl C3 H6 OH
C6 H5
C2 H4 OC2 H5
golden yellow
434
5 Cl C3 H6 OH
C6 H5
C2 H4 OC2 H4 OH
yellow 433
6
Cl C3 H6 OH
C6 H5
C2 H4 OC2 H4 OCH3
yellow 433
7 Cl C3 H6 OH
C6 H5
C3 H6 OC2 H4 OH
golden yellow
435
8 Cl C3 H6 OH
C6 H5
C3 H6 OC4 H8 OH
golden yellow
436
9 Cl C2 H4 OH
C6 H5
C2 H4 OCH3
yellow 431
10 Cl C2 H4 OH
C6 H5
C3 H6 OCH3
yellow 432
11 Cl C2 H4 OH
C6 H5
C3 H6 OC3 H7
yellow 433
12 Cl C2 H4 OCH3
C6 H5
C2 H4 OCH3
yellow 431
13 Cl C2 H4 OCH3
C6 H5
C3 H6 OCH3
yellow 433
14 Cl C3 H6 OCH3
C6 H5
C3 H6 OCH3
golden yellow
434
15 Cl
##STR180## C6 H5
C3 H4 OCH3
golden yellow
435
16 Cl
##STR181## C6 H5
##STR182##
golden yellow
436
17 Br
##STR183## C6 H5
##STR184##
golden yellow
436
18 Br C3 H6 OH
C6 H6
C3 H6 OH
golden yellow
437
19 Cl C3 H6 OH
##STR185##
C3 H6 OH
golden yellow
436
20 Cl C3 H6 OH
##STR186##
C3 H6 OH
golden yellow
437
21 Cl C4 H8 OH
C6 H5
C4 H8 OH
golden yellow
438
22 Cl C2 H4 OH
##STR187##
C2 H4 OH
golden yellow
436
23 Cl
##STR188##
##STR189##
C2 H4 OH
yellow 434
24 CF3
C3 H6 OH
C6 H5
C3 H6 OH
golden yellow
439
25 CF3
C3 H6 OH
C6 H5
C2 H4 OH
golden yellow
439
26 CF3
##STR190## C6 H5
C2 H4 OH
golden yellow
439
__________________________________________________________________________
TABLE 12
__________________________________________________________________________
##STR191##
No.
A R1
R2 Hue λmax (nm)
__________________________________________________________________________
1 CH2 CH2
Cl C2 H4 OH
golden yellow
451
2 (CH2)3
Cl C2 H4 OH
golden yellow
453
3 (CH2)3
Br C3 H6 OH
golden yellow
455
4 (CH2)3
Cl C2 H4 OC2 H4 OH
golden yellow
455
5 (CH2)3
Cl C2 H4 OCH3
golden yellow
455
6 (CH2)3
Cl C3 H6 OCH3
golden yellow
456
7 (CH2)4
Cl C2 H4 OH
golden yellow
453
8 (CH2)4
Cl C3 H6 OH
golden yellow
456
9 (CH2)3 O(CH2)2 O(CH2)3
Cl C2 H4 OH
golden yellow
452
10 (CH2)3 O(CH2)2 O(CH2)3
Cl C3 H6 OH
golden yellow
453
11 (CH2)3 O(CH2)4 O(CH2)3
Cl C3 H6 OH
golden yellow
453
12 (CH2)3 O(CH2)4 O(CH2)3
Cl C2 H4 OCH3
golden yellow
452
13 (CH2)3 O(CH2)4 O(CH2)3
Br C3 H6 OCH3
golden yellow
454
__________________________________________________________________________
TABLE 13
__________________________________________________________________________
##STR192##
λmax
No.
R1
R2
R3
R4 R5
Hue (nm)
__________________________________________________________________________
1 N(CH3)2
H H CH2 CH2 OH
CH2 CH2 OH
orange
2 N(CH3)2
H Cl
CH2 CH2 OH
CH2 CH2 OH
orange
430
3 N(CH3)2
Cl
Cl
CH2 CH2 OH
CH2 CH2 OH
orange
463
4 N(C2 H5)2
Cl
Cl
CH2 CH2 OH
CH2 CH2 OH
orange
463
5 N(C2 H5)2
H Cl
CH2 CH2 OH
CH2 CH2 OH
orange
461
6 N(C2 H5)2
H Cl
C3 H6 OH
C3 H6 OH
orange
432
7 N(CH3)2
Cl
Cl
C2 H4 OCH3
C3 H6 OH
orange
463
8 N(CH3)2
Cl
Cl
C2 H4 OCH3
C2 H4 OCH3
orange
462
9 N(CH3)2
Cl
Cl
C3 H6 OCH3
C3 H6 OCH3
orange
465
10 N(CH3)2
Cl
Cl
##STR193## C3 H6 OCH3
orange
462
11 N(CH3)2
Cl
Cl
##STR194## C2 H4 OH
orange
461
12 N(CH3)2
Cl
Cl
##STR195## C2 H5
orange
466
13 N(CH3)2
Cl
Cl
##STR196##
##STR197##
orange
467
14 N(C2 H5)2
Cl
Cl
##STR198##
##STR199##
orange
467
15 N(C2 H5)2
H H
##STR200##
##STR201##
orange
453
16 N(C2 H5)2
H H
##STR202## C6 H5
orange
452
17 N(C2 H5)2
H H C2 H4 OC2 H4 OH
C6 H5
orange
452
18 N(CH3)2
H H C2 H4 OC2 H4 OH
C6 H5
orange
452
19 CH3
H Cl
##STR203## C6 H5
orange
444
20 CH3
H Cl
##STR204##
##STR205##
orange
445
21 N(CH3)2
Cl
Cl
C3 H6 OC2 H4 OCH3
C3 H6 OCH3
orange
465
22 NHC4 H9
Cl
Cl
##STR206## C6 H5
orange
463
__________________________________________________________________________
TABLE 14
______________________________________
##STR207##
λmax
No. R1 R2 Hue (nm)
______________________________________
1 Cl C2 H4 OC4 H9
yellow
426
2 Cl C3 H6 OC4 H9
yellow
427
3 Cl C4 H9 (n)
yellow
428
4 Cl C3 H6 OC2 H5
yellow
426
5 Cl C3 H6 OCH3
yellow
427
6 Cl C3 H6 OC2 H4 OCH3
yellow
427
7 CH3
C3 H6 OC2 H4 OCH3
yellow
427
8 CH3
C3 H6 OCH3
yellow
427
9 CH3
C3 H6 OC2 H5
yellow
427
10 CH3
C3 H6 OC2 H4 OH
yellow
427
11 Cl C3 H6 OC4 H8 OH
yellow
427
12 CH3
C3 H6 OC4 H8 OH
yellow
427
______________________________________
TABLE 15
______________________________________
##STR208##
λmax
No. R1 R2 R3 Hue (nm)
______________________________________
1 C2 H4 OCH3
CH3 CH3 yellow
418
2 C2 H4 OCH3
C2 H5
C2 H5
yellow
419
3 C3 H6 OCH3
C2 H5
C2 H5
yellow
420
4 C3 H6 OCH3
CH3 CH3 yellow
418
5 C3 H6 OC2 H5
CH3 CH3 yellow
418
6 C3 H6 OC2 H5
C2 H5
C2 H5
yellow
420
##STR209## C2 H5
C2 H5
yellow
419
##STR210## C2 H5
C2 H5
yellow
420
##STR211## C4 H9 (n)
C4 H9 (n)
yellow
422
______________________________________

Lamm, Gunther

Patent Priority Assignee Title
5616695, Aug 30 1994 Huntsman International LLC Azo dyes containing a 1-alkyl-6-hydroxy-4-methyl-3-sulfomethyl-pyrid-2-one coupling component
6133449, Jun 03 1994 John Wyeth & Brother Ltd. Processes and intermediates for the preparation of piperazine derivatives
6395902, Jun 03 1994 John Wyeth & Brother Limited Oxathiazolidinyl pyridines
Patent Priority Assignee Title
3907769,
3979378, Jan 31 1970 Badische Anilin- & Soda-Fabrik Aktiengesellschaft Water-soluble azo dyes having a substituted 2-hydroxypyridone (6) coupling component
4145341, Jan 19 1973 BASF Aktiengesellschaft Water-soluble azo dyes containing diaminopyrimidine coupler components
4359418, Mar 12 1979 Ciba-Geigy AG Amine salts of azo dyestuffs of the pyridone series
DE3316887,
EP35172,
EP48538,
GB2067585,
NL7309557,
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 12 1985LAMM, GUNTHERBASF AktiengesellschaftASSIGNMENT OF ASSIGNORS INTEREST 0046160904 pdf
Feb 15 1985BASF Aktiengesellschaft(assignment on the face of the patent)
Date Maintenance Fee Events
Jul 27 1987ASPN: Payor Number Assigned.
Aug 30 1990M173: Payment of Maintenance Fee, 4th Year, PL 97-247.
Nov 01 1994REM: Maintenance Fee Reminder Mailed.
Mar 26 1995EXP: Patent Expired for Failure to Pay Maintenance Fees.


Date Maintenance Schedule
Mar 24 19904 years fee payment window open
Sep 24 19906 months grace period start (w surcharge)
Mar 24 1991patent expiry (for year 4)
Mar 24 19932 years to revive unintentionally abandoned end. (for year 4)
Mar 24 19948 years fee payment window open
Sep 24 19946 months grace period start (w surcharge)
Mar 24 1995patent expiry (for year 8)
Mar 24 19972 years to revive unintentionally abandoned end. (for year 8)
Mar 24 199812 years fee payment window open
Sep 24 19986 months grace period start (w surcharge)
Mar 24 1999patent expiry (for year 12)
Mar 24 20012 years to revive unintentionally abandoned end. (for year 12)